<template>
    <div class="login_container">
        <div class="login_box">
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <el-form class="login_form" :model="loginForm" :rules="loginFormRules" ref="loginFormRef">
                <el-form-item prop="username">
                    <el-input prefix-icon="iconfont icon-user" v-model="loginForm.username"></el-input>
                </el-form-item>

                <el-form-item prop="password">
                    <el-input type="password" prefix-icon="iconfont icon-3702mima" v-model="loginForm.password"></el-input>
                </el-form-item>

                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
    export default{
        data(){
            return{
                loginForm:{
                    //登录表单数据对象
                    username:'',
                    password:''
                },
                loginFormRules:{
                    username:[
                        {required:true,message:'请输入登录名称',trigger:'blur'},
                        {min:3,max:10,message:'长度在3到10之间',trigger:'blur'}
                    ],
                    password:[
                        {required:true,message:'请输入密码',trigger:'blur'},
                        {min:6,max:10,message:'长度在6到10之间',trigger:'blur'}
                    ]
                }
            }
        },
        methods:{
            resetLoginForm(){
                this.$refs.loginFormRef.resetFields()
            },
            login(){
                this.$refs.loginFormRef.validate(async valid => {
                    if(!valid)return;
                    const {data:res} = await this.$http.post('login', this.loginForm);
                    if(res.meta.status !== 200) return this.$message.error('登录失败')
                    this.$message.success('登录成功')

                    window.sessionStorage.setItem('token', res.data.token);

                    this.$router.push('/home');
                })
            }
        }
    }
</script>

<style lang="less" scoped>
.login_container{
    height:100%;
    background: #2b4b6b;
}
.login_box{
    width:450px;
    height:300px;
    background:#fff;
    border-radius: 3px;
    position: absolute;
    left:50%;
    top:50%;
    transform: translate(-50%, -50%);
    .avatar_box{
        height: 130px;
        width:130px;
        border:1px solid #eee;
        border-radius: 50%;
        padding:10px;
        box-shadow: 0 0 10px #ddd;
        margin:-65px auto;
        background: #fff;
        img{
            width:100%;
            height: 100%;
            border-radius: 50%;
            background: #eee;
        }
    }
}
.login_form{
    position: absolute;
    bottom: 0;
    width:100%;
    padding:0 20px;
    box-sizing: border-box;
}
.btns{
    display: flex;
    justify-content:flex-end;
}
</style>